258 
Dl G. HORVÁTH 
Cimex Linn. 
Cimex Linn. Syst. Nat. ed. X. p. 441. (1758) ; Stal Emim. Hem. III. p. 103. 
(1873). 
Acanthia Fabr. Syst. Rhyng. p. 112. (1803). 
Clinocnris Fall. Hem. Svec. p. 141. (1829). 
Klinophilos Kirk. Entomologist, XXXII. p. 219. (1899). 
This cosmopolitan genus appears with five species in the New 
World, two of which ( C . foedus and valdivianus ) are unknown to me. 
The three others may be separated thus : 
1 (4). Lateral sides of the pronotum widely dilated, broader than the breadth 
of one eye and densely fringed with backward curved hairs; apical 
margin of the elytra nearly straight, rounded towards the interior or 
exterior angles. 
2 (3). Body covered with very short hairs ; second joint of the antennæ shor¬ 
ter than the third; lateral sides of the pronotum feebly reflexed, frin¬ 
ged with shorter hairs than the breadth of one eye ; elytra with the 
commissural (inner) margin rounded and shorter than the scutellum, 
apical margin rounded towards the interior angle. 
1. C . lectidarius Linn. 
3 (2). Body covered with longer hairs ; second and third antennal joints 
equal in length; lateral sides of the pronotum narrowdy but distinctly 
reflexed, fringed with longer hairs than the breadth of one eye ; elytra 
with the commissural margin straight and longer than the scutellum, 
apical margin rounded towards the exterior angle. 
2. C . jnlosellus Horv. 
4 (1). Lateral sides of the pronotum not dilated, nor reflexed, fringed with 
less dense and nearly straight hairs ; elytra with the apical margin 
distinctly rounded. 3. C . hemipterus Fabr. 
1. Cimex lectularius Linn. 
The Common Bed-bug the synonymy of which is unnecessary to 
give here, is widely distributed in the New World and was recorded 
from Canada to Patagonia. I have received a large number also from 
Antofagasta, Chili. 
This universal pest of human habitations occurs often in henhouses, 
in pigeon nests and sometimes on bats. The U. S. National Museum 
of Washington possess some specimens taken in henhouses from Anna- 
costa, D. C. (A. A. Girault), Detroit, Mich. (H. G. Hubbard) and Loui¬ 
siana, Mo. 
